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ATTORNEYS} N. Firms mwum m Walhinginn, n. c.

. IUNITEDE-STATES l. PA OFFICE; 3

CLARK M. 'PLATT. AND FRANK'-'R."WHITE, OF WATERBURY, CONNECTICUT,

ASSIGNORS TO THE PATENT BUTTON COMPANY, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 380,132, dated March 2'7, 1888.

Application filed October 26, 1887. Serial Nb. 253.444. (N model.)

To aZZ whom, it may concern..-

Be it known thatwe, GLARKM. PLA'I'T and FRANK R. WHITE, both'of Waterbury, in the county of N ew Haven and State of Connecticut, have invented a certain new and useful Improvement in Rivet-Setting Machines, of which we declare the following to be a full, clear, and exact specification, reference being had to the accompanying drawings, forming a part thereof. 7

This invention has for its purpose the improvement of the rivet-setting machine heretofore patented by Clark M. Platt in Letters Patent No. 270,555, of January 9, 1883; and the invention consists in a rivet-setting machine constructed, arranged, and combined in the manner hereinafter shown, described, and claimed.

In the accompanying sheets of drawings, Figure I is a side view of the machine, partly in section. Fig. 2 is a view of the mechanism at the rear of the reservoir. Fig. 3 is a plan view, partly sectional, in the planes indicated by the broken line a; as, Fig. 1. Fig. 4. isa sectional view of the receiver and clamping-plate beneath it. Fig. 5 is a detail view of one of the winged guide-plates. Fig. 6 is a detail View of the plate hereinafter called the plate B. Figs. 7, 8, and 9 are detail views of the clamping-plate, the spring plate, and the retaining-springs, respectively. Fig. 10 is a detail view of the anvil in section.

Similar letters of reference indicate like parts in the several views.

The improvements which we desire to patent primarily relate to an elastic guide attachment for the rivet-receiver, and to devices for insuring the straight delivery of the rivet into the receiver, together with the mechanism in connection with the cut-off designed to regulate the passage of the rivets in the chute or raceway, and, finally, the yielding clamp for holding the goods in position to be operated upon. Each and all of these devices, combining with the other parts of the operating mechanism, constitute a complete machine for setting rivets. I v

In the machine heretofore patented to Clark M. Platt, as before stated, and improved, as set forth in Patent No. 343,846, of June 15, 1886, a device called an upset plate was employed to cause the rivets to be delivered.

point foremost into the receiver. This device, although'generally efi'ective for that purpose, in some instances failed, and we now construct the lower part of the raceway A of our machine with a slot, a, and into this slot fit at right angles a plate, B, with an opening, I).

This opening is the same size and shape as the opening in the end C of the raceway A. To.

sides of this receiver are pivoted-two guide- 7 plates, G and G, constructed so that when the lower parts of these plates are in the closed position the orifice of the receiver F, or the bottom part of this orifice, will be closed, with the exception of a small opening, and when the plates are open or spread apart the orifice through the receiver is unobstructed by them. i The opening 9 in the plates G and G is formed with angular or flaring sides h. The plates G and G are also provided with wings i, and they are connected together by a spring, k. To the supporting-arm H of, the machine is fixed a bracket-arm, K, and this bracketarm at its forward end forms the support of the rivet-receiver F. To the under side of this arm K is fixed a spring-plate, L. This springplate at its forward end terminates in a fork, Z, and at this fork end is supported by trunnions a plate, M, with a circular opening, m, the circular opening coming immediately below the plates G and Gof the receiver F. This plate M, besides being supported on trunnions, as stated, is held in position in part by springs 11.. w 7

F. represents the anvil, which is constructed with a yielding die, as illustrated in Fig. 10. p

The face 1 of thedie lies in a recess, 1:, in the upper end of the part Z of the anvil, and below the face the diameter of the die is somewhat reduced, and a short distance farther down the diameter isreduced again, so that'a shoulder, s, is formed near the upper end of the die, while the part from the shoulder downward constitutes a stem, t, that slides in a channel, to, extending from the bottom of the recess through the anvil. A coil-spring, w, surrounds the die above the channel and exerts a steady upward pressure upon it.

The advantage of this construction is, that the face of the button is always kept tightly against the die when the machine is in operation, and the hub of the button is pressed up closely against the cloth, so that the hub is brought into exactly the proper'position to receive the rivet'from the receiver, and no opportunity is afforded for the rivet to become deflected from the center of the button. Moreover, if the cloth is stiff or thick,the receding of the die permits the rivet to puncture the cloth before it comes in contact with the button, and so saves the button from injury, because in some cases the force required to drive the rivet through the cloth might crush the back of the button, and it also keeps the cloth from being forced into the hub of the button by the pressure of the plunger, and so causes the rivet to pierce the cloth without wrinkling it.

Our rivet-setting machine constructed with the features hereinbefore described is in this way operated: Power being applied to the operating-lever N, the reservoir 0 of the machine having first received a supply'of rivets, the rivets pass with their heads downward into the chute and slide in order toward its lower end. The cut-ofl' P allows'but a'single rivet to pass down to the mouth of the chute for each complete operation of the plunger, and when the plunger descends to drive the rivet already in the receiver the first rivet in' order above the cut-ofi passes the cut-off and continues on its way toward the receiver alone. At the same instant the pawl-plate E is caused to turn slightly on its axis by the action of the rod 0, connecting it with the operating-lever N, and by this means the rod d is drawn upward, whereupon the spiral spring 0 acts on the crank-lever D,aud this pulls the plate B downward, so that its opening b does not register exactly with the opening f in the end 0 of the chute, but does register with the channel of the chute above, as illustrated in Fig. 1. Thus the upper part of the end 0 forms an obstruction across the pathway of the rivet, and when the rivet reaches this point its head strikes the obstruction thus presented and the rivet falls over on its side, its lower part extending into the channel f, while its head rests against the obstructing end 0, the upper portion of the chute at this place being somewhat cut away, so as to allow the head of the rivet to turn in the manner indicated. Here the rivet is held so long as the plate B remains in the same position, for the opening b is large enough to let the head of the rivet pass into the opening f of the end 0 only when these openings exactly register with each other.

So much of the operation as has thus far been described takes place while the plunger is descending. When the plunger rises, the rod (1 is forced downward, carrying with it the upper end of the crank-lever D, thus causing its lower end to push upward the plate B till its opening b coincides with the opening or channel f. Then the rivet at once slides down into the receiver F and is ready to be acted upon by the plunger. In case, for example, the machine is being used to attach a button to a piece of fabric, the but-ton is placed with its top downward against the anvil R, and the cloth is held immediately under the plate M. New upon the downward movement of the plunger, and while the operation above described of feeding the rivets is in progress, the anvil R rises till it firmly clamps the button and the cloth between itself and the plate M, which, by virtue of the manner in which it is supported, offers a yielding resistance to the pressure of the anvil and accommodates itself to inequalities in the thickness of the fabric, and the plunger,coming in due time in contact with the rivet, forces this downward through the receiver and between the beveled sides h of the opening g in the guide-plates G and G, the rivet being kept constantly in an upright position by the pressure of these plates against its head and shank,till finally the lower end of the rivet is made to perforate the cloth and enter the button, where it is upset or clinched, while the head is driven completely through the opening 9 in the plates G G, these plates being separated by the action of the plunger and restored to their normal position when the plunger rises by means of the spring k. The anvil then falls and the fabric with the button attached to it is released. The wings t i of the plates G G- are to make convenient the removal of rivets from the receiver by hand when desirable.

Having now described our invention, what we claim as new, and wish to secure by Letters Patent, is-'- 1. In a rivet-setting machine provided with a chute for feeding the rivets to the plunger, which chute has an opening in the under side thereof, a sliding plate within said opening, and mechanism, substantially as described, for causing the edge of said plate to alternately lie flush with and project somewhat above the bottom of the raceway, as and for the purpose set forth.

2. In a rivet-setting machine, the combination of the chute A, having the slot a, the end 0, having the channel f, whose bottom at the upper extremity of the end 0 is higher than the bottom of the slot a at its lower extremity, and the sliding plate B, having a perforation, b, that is made to register alternately with the slot'a and the channel f, said parts being constructed to operate in the manner described.

3. .In a rivet-setting machine provided with a chute for feeding the rivets to the plunger, the combination of the perforated and sliding plate B, arranged crosswise to the chute near its mouth, the bell-crank lever D, the rod d,

extending from said lever to the pawl-plate E,

and the'spring e, as and for the purpose described. I

4. In a rivet-setting machine, the combinationof the receiver F, having a central orifice,

tion of the receiver F, having a central orifice,

and the pivoted guide-plates G and G, having an opening, 9, with beveled sides h, which guide-plates extend under said receiver and prevent the free passage of the rivet through said orifice, and are connected by the spring is, as and for the purpose described.

6. In a rivet-setting machine, a receiver pro-W vided with pivoted guide-plates G and G, constructed to operate as described, and having Wings 1' i, forthepurpose'set forth.

7. In a rivet-setting machine, the combination of the spring L, having the fork Z, and the plate M, having the opening m and supported in the fork Z by trunnions, between'which plate and the anvil of the machine the goods are clamped during the process of setting the rivet, as'and for the purpose described.

8. In a rivet-setting machine, an anvil.'consisting of the combination of a die having a face, r, a shoulder, s, and a stem, 25, a coilspring, w, surrounding said ,die and bearing. upward against the under side of the face portion, and a part, Z, provided with arecess, '0,

and a channel, u, which recess has rigid walls 7 and contains the face 1', shoulder s, and upper part of the stem tof the die, and thespring w,

as and for the purpose described.

CLARK M. PLATT. FRANK R. WHITE.

In presence of GEO. H. CoWELL,

J. G. PLATT. 

